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MAX4772 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX4772 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 10 page 200mA/500mA Selectable Current-Limit Switches _______________________________________________________________________________________ 5 Pin Description Typical Operating Characteristics (continued) (VIN = 3.3V, TA = +25°C, unless otherwise noted.) PIN SOT23 TDFN NAME FUNCTION 1 1 IN Input. Bypass with a 0.1µF ceramic capacitor to ground. 2 5 GND Ground 3 6 ON Active-High Switch-On Input. A logic high turns the switch on. 44 FLAG Fault Output. This open-drain output goes low when the device stays in forward or reverse current limit for more than the blanking time period. FLAG is high impedance when a fault is not present or when ON is low. 5 3 SEL Current-Limit Threshold Selection. Connect to logic-low level or leave floating to select 200mA current- limit threshold. Connect to logic-high level to select 500mA current-limit threshold. 6 2 OUT Switch Output. Bypass with a 0.1µF ceramic capacitor to ground. 0V 0V 3V 3V 0V 200 µs/div VIN 2V/div VOUT 2V/div IOUT 1A/div REVERSE CURRENT LIMIT MAX4772/3 toc16 CIN = 1 µF COUT = 1 µF VSEL = 3.3V 0V 0V 3.3V 20 µs/div VON 1V/div IOUT 10mA/div SWITCH TURN-ON TIME RESPONSE MAX4772/3 toc17 0V 0V 3.3V 40ns/div VON 1V/div IOUT 10mA/div SWITCH TURN-OFF TIME RESPONSE MAX4772/3 toc18 0V 0V 0V 0V 3.3V 3.3V 3.3V 10ms/div VIN 2V/div VOUT 2V/div VFLAG 2V/div IOUT 500mA/div FLAG-BLANKING RESPONSE (OVERLOAD CONDITION) MAX4772/3 toc19 VSEL = VIN = 3.3V CIN = 1 µF COUT = 1 µF |
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